Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 10/06/1999 |
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<mark>Journal</mark> | Physics Letters B |
Issue number | 2-4 |
Volume | 456 |
Number of pages | 6 |
Pages (from-to) | 118-123 |
Publication Status | Published |
<mark>Original language</mark> | English |
It is usually assumed that the order H-2 corrections to the SUSY-breaking mass squared terms in the early Universe must he negative in order to allow the Affleck-Dine mechanism to work. We reconsider this assumption in the context of D-term inflation models for the case where the mass squared term has a correction cH(2) with c > 0. We show that, in general, the baryon asymmetry is likely to be too small if c > 9/16. However, for c as large as 0.5 the observed baryon asymmetry can be readily generated; in particular, for d = 6 directions the observed asymmetry can be produced for a wide range of reheating temperatures, in contrast with the case of negative H-2 corrections which require a reheating temperature around 1 GeV. Thus positive H-2 corrections do not rule out the Affleck-Dine mechanism and can even greatly broaden its applicability to inflation models.